iOS获取群信息一直输出token is volid

log如下,一直循环着打印这些东西,如果不获取群信息就没有问题.
 [2017/3/13 21:27:58:815]: [retrieve groups from server time] time spent on loading groups size :0 with time spent :  0: 0:193

[2017/3/13 21:27:58:816]: restBaseUrl()

[2017/3/13 21:27:58:816]: EMDNSManager::getCurrentHost: type: 2

[2017/3/13 21:27:58:816]: EMSessionManager::checkDNS()

[2017/3/13 21:27:58:816]: EMDNSManager::getHost: type: 2

[2017/3/13 21:27:58:816]: current host: domain: a1.easemob.com port: 443

[2017/3/13 21:27:58:816]: token is valid